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Carbide insert DCGT 11T304 Aluminum K10 Horn
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  • Carbide insert DCGT 11T304 Aluminum K10 Horn
  • Carbide insert DCGT 11T304 Aluminum K10 Horn - nr. 1
Horn

Carbide insert DCGT 11T304 AL Horn

Horn Horn
0000008018
Cutting edge length: 112 sizes of this insert
07 mm11
€5.02 tax inc.

Net price: €4.08

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Description

DCGT 11T304 turning insert – single-sided 55° diamond for aluminum

Technical data
Side length l 11 mm
Insert thickness s 3.97 mm
Hole diameter d1 4.4 mm
Corner radius rε 0.4 mm
ANSI code DCGT 32.51
DCGT 11T304 indexable turning insert made of K10 carbide, single-sided 55° diamond with a hole and chip breaker for aluminum

Cutting data for the DCGT 11T304 insert for aluminum and nonferrous metals

finishing, semi-finishing, and roughing — ISO N group

MaterialFinishingSemi-finishingRoughing
Vc [m/min]Feed f [mm/rev]ap [mm]Vc [m/min]Feed f [mm/rev]ap [mm]Vc [m/min]Feed f [mm/rev]ap [mm]
NAluminum and nonferrous materials 375-2400 0.1 0.1 40-240 0.16 2.55 40-240 0.22 5

K10 carbide indexable insert – applications and design

single-sided, positive 55° diamond with a sharp edge for nonferrous metals

The DCGT 11T304 turning insert is a single-sided, diamond-shaped indexable insert made of fine-grained K10 grade cemented carbide, designed for turning aluminum and nonferrous metals. Shape D, a diamond with a 55° corner angle, facilitates profile turning, copy turning and access to the workpiece contour thanks to its two sharp corners. The positive geometry with a 7° clearance angle and a fine, often polished cutting edge reduce cutting forces and power consumption. The nose radius rε of 0.4 mm is a finishing option that promotes a smooth surface at low feed rates. The insert is secured with a central screw in the tool holder pocket, leaving open space above the cutting edge and facilitating unobstructed chip flow.

Key features of the K10 carbide insert for aluminum

  • Two cutting edges — the 55° diamond has 2 sharp corners on a single working side of the insert; once a corner becomes dull, simply rotate the insert to the other corner.
  • Fine-grain K10 carbide — ISO N group for aluminum and nonferrous metals; maintains edge sharpness at high cutting speeds.
  • Positive 7° geometry — low cutting forces and reduced power consumption, beneficial for slender and thin-walled workpieces.
  • The sharp, polished edge reduces built-up edge formation typical of ductile aluminum and improves surface quality.
  • Countersunk hole and chip breaker — central screw clamping and controlled flow of fine, ductile chips.
  • The nose radius rε of 0.4 mm is a finishing option; a larger radius within the family increases edge strength during rough turning.

Applications and cutting data selection for the diamond-shaped insert

The DCGT 11T304 insert (also written without spaces as dcgt11t304) is suitable for turning aluminum alloy shafts, sleeves and housings, as well as brass, bronze and copper components. Calculate spindle speed using the formula n = 1000·Vc/(π·D): for a shaft with a diameter of 30 mm at Vc = 600 m/min, the result is approximately 6366 rpm. Aluminum is turned at high cutting speeds, so the machine tool should provide sufficiently high spindle speeds. K10 grade indexable inserts are supplied by the Korean brand Horn.

When machining aluminum, limiting built-up edge formation is essential because it impairs the surface finish and dimensional accuracy of the workpiece. Sharp, positive geometry and a generous supply of emulsion or oil help by flushing fine, ductile chips out of the cutting zone. For finishing, use low feed rates and shallow depths of cut, and select the 0.4 mm nose radius to suit the required surface roughness. For larger machining allowances, choose a version within the family with a larger nose radius, which increases edge strength during rough turning. A well-prepared cutting edge also reduces machining time by allowing higher cutting speeds without compromising surface roughness.

▲
Application limitation

Grade K10 and the sharp, positive geometry are intended for aluminum and nonferrous metals — for turning steel or cast iron, choose an insert from group ISO P or ISO K in a grade with suitable wear resistance.

Rhombic insert designation decoder according to ISO 1832

how to read the DCGT 11T304 code — positions 1–7 of the designation

Designation DCGT 11T304 according to the standard ISO 1832: 4 letters describe geometry and construction, 3 numeric codes describe dimensions. Each field has a number, an icon, and a brief description.

ISO 1832 designation decoder — how to read the code

1Dshape 2Cangle α 3Gtolerance 4Ttype – 511size 6T3thickness 704radius rε

Positions 1–4 · ISO code

1DShape

55° rhombus

2 corners of 55° per side

2CClearance angle

α = 7°

positive, single-sided

3GTolerance

Class G (ground)

IC ±0.025 · thickness ±0.13 mm

4TType

Countersunk hole + chip breaker

countersink 40–60°, single-sided chip breaker

Positions 5–7 · dimensions [mm]

511Size

l = 11 mm

IC = 9.525 mm · 3/8″

6T3Thickness

s = 3.97 mm

between rake faces

704Corner radius

rε = 0.4 mm

code ÷ 10 → radius in mm

✓ 2 corners × 1 side = 2 cutting edges

Full designation: DCGT 11T304 = 55° diamond · positive 7° · class G · countersunk hole and chip breaker · IC 9.525 mm (l 11 mm) · s 3.97 mm · rε 0.4 mm

Compatible turning tools

turning tool holders compatible with the insert — external and internal turning

SDHCR/L 1616 H1116×16 × 100 mmR right-hand
←L left-hand
→
SDHCR/L 2020 K1120×20 × 125 mmR right-hand
←L left-hand
→
SDHCR/L 2525 M1125×25 × 150 mmR right-hand
←L left-hand
→
SDHCR/L 3232 P1132×32 × 170 mmR right-hand
←L left-hand
→
SDJCR/L 1212 F1112×12 × 80 mmR right-hand
←L left-hand
→
SDJCR/L 1616 H1116×16 × 100 mmR right-hand
←L left-hand
→
SDJCR/L 2020 K1120×20 × 125 mmR right-hand
←L left-hand
→
SDJCR/L 2525 M1125×25 × 150 mmR right-hand
←L left-hand
→
SDJCR/L 3232 P1132×32 × 170 mmR right-hand
←L left-hand
→
SDNCN 1212 F1112×12 × 80 mmR right-hand
←L left-hand
→
SDNCN 1616 H1116×16 × 100 mmR right-hand
←L left-hand
→
SDNCN 2020 K1120×20 × 125 mmR right-hand
←L left-hand
→
SDNCN 2525 M1125×25 × 150 mmR right-hand
←L left-hand
→
SDNCN 3232 P1132×32 × 170 mmR right-hand
←L left-hand
→
S16P SDXCR/L-11Ø16 | Ømin 21 mm | L=170R right-hand
←L left-hand
→
S20R SDXCR/L-11Ø20 | Ømin 25 mm | L=200R right-hand
←L left-hand
→
S25S SDXCR/L-11Ø25 | Ømin 32 mm | L=250R right-hand
←L left-hand
→
S32T SDXCR/L-11Ø32 | Ømin 40 mm | L=300R right-hand
←L left-hand
→
S40U SDXCR/L-11Ø40 | Ømin 50 mm | L=350R right-hand
←L left-hand
→
S16P SDPCR/L-11Ø16 | Ømin 21 mm | L=170R right-hand
←L left-hand
→
S20R SDPCR/L-11Ø20 | Ømin 25 mm | L=200R right-hand
←L left-hand
→
S25S SDPCR/L-11Ø25 | Ømin 32 mm | L=250R right-hand
←L left-hand
→
S32T SDPCR/L-11Ø32 | Ømin 40 mm | L=300R right-hand
←L left-hand
→
S40U SDPCR/L-11Ø40 | Ømin 50 mm | L=350R right-hand
←L left-hand
→
S16P SD-CR/L-11Ø16 | Ømin 21 mm | L=170R right-hand
←L left-hand
→
S20R SD-CR/L-11Ø20 | Ømin 25 mm | L=200R right-hand
←L left-hand
→
S25S SD-CR/L-11Ø25 | Ømin 32 mm | L=250R right-hand
←L left-hand
→
S32T SD-CR/L-11Ø32 | Ømin 40 mm | L=300R right-hand
←L left-hand
→
S40U SD-CR/L-11Ø40 | Ømin 50 mm | L=350R right-hand
←L left-hand
→
S16P SDQCR/L-11Ø16 | Ømin 21 mm | L=170R right-hand
←L left-hand
→
S20R SDQCR/L-11Ø20 | Ømin 25 mm | L=200R right-hand
←L left-hand
→
S25S SDQCR/L-11Ø25 | Ømin 32 mm | L=250R right-hand
←L left-hand
→
S32T SDQCR/L-11Ø32 | Ømin 40 mm | L=300R right-hand
←L left-hand
→
S40U SDQCR/L-11Ø40 | Ømin 50 mm | L=350R right-hand
←L left-hand
→
S16P SDUCR/L-11Ø16 | Ømin 21 mm | L=170R right-hand
←L left-hand
→
S20R SDUCR/L-11Ø20 | Ømin 25 mm | L=200R right-hand
←L left-hand
→
S25S SDUCR/L-11Ø25 | Ømin 32 mm | L=250R right-hand
←L left-hand
→
S32T SDUCR/L-11Ø32 | Ømin 40 mm | L=300R right-hand
←L left-hand
→
S40U SDUCR/L-11Ø40 | Ømin 50 mm | L=350R right-hand
←L left-hand
→

Frequently asked questions about the DCGT 11T304 insert

use, turning tool selection, and turning parameters

Two — a diamond with a 55° angle has 2 acute corners, and the positive, single-sided geometry (7° clearance angle) uses only the top face of the insert. Once one corner becomes dull, rotate the insert in its pocket to the other without changing the tool holder.

Holders with a 11 diamond-shaped pocket (IC 9.525 mm): for external turning, tools SDHCR/L, SDJCR/L and SDNCN with shank cross sections from 12×12 to 32×32 mm; for internal turning, boring bars S16P–S40U with the suffix SDXCR/L, SDPCR/L, SDQCR/L or SDUCR/L. See the compatible turning tools section for the full list.

Only in corner radius: 0.4 mm (code 04) is used for finishing at low feed rates and produces a smoother surface, while 0.8 mm (code 08) is a version with greater edge strength for slightly heavier cuts. The other dimensions — IC 9.525 mm and thickness 3.97 mm — are identical.

This is not recommended. Grade K10 and the sharp, positive geometry are intended for aluminum and nonferrous metals in group ISO N. For turning steel or cast iron, choose an insert from ISO group P or K with greater wear resistance and a higher cutting edge operating temperature.

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Carbide insert DCGT 11T304 AL Horn

Carbide insert DCGT 11T304 AL Horn

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